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Would an action potential be possible without the presence of proteins? Explain your
response.

A. Yes, the action potential would be possible since the Na+ being hydrophobic can enter the neuron through the phospholipid bilayer.

B. No, the action potential would not be possible since Na+ being hydrophilic would not be able to move across the plasma membrane.

C. No, the action potential would not be possible since Na+ being hydrophilic would not be able to move across the plasma membrane unless ATP was available